This is especially true in countries where farms haven't evolved into 'super-farms'. You have the likes of dairy-farmers who are heavily exposed to the volatility which comes part-and-parcel with specialization (i.e. lack of diversification). For a small family farmer, there is limited benefit to thinking long-term. Their livelihood is tied up with next quarter's profit and they don't have the sophistication/time to be hedging exposure on futures exchanges.